package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.service.OrderService;
import com.itheima.utils.DateUtils;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.Map;

/**
 * @PackageName: com.itheima.service.impl
 * @ClassName: OrderServiceImpl
 * @Author: XLB
 * @Date: 2020/3/11 18:25
 * @Description:
 */
@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderDao orderDao;
    @Autowired
    private OrderSettingDao orderSettingDao;
    @Autowired
    private MemberDao memberDao;

    public Result order(Map map) throws Exception {
        //1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行预约
        String orderDate = (String) map.get("orderDate");
        OrderSetting orderSetting= orderSettingDao.findByOrderDate(DateUtils.parseString2Date(orderDate));
        if (orderSetting==null){
            //指定日期没有进行预约设置，无法进行预约
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }
        //2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约
        if (orderSetting.getNumber()<=orderSetting.getReservations()){
            return new Result(false, MessageConstant.ORDER_FULL);
        }
        //3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约则无法完成再次预约
        String telephone = (String) map.get("telephone");
        Member member= memberDao.findByTelephone(telephone);
        //不是会员
        if (member!=null){
            //同一个用户在同一天预约了同一个套餐
            Integer memberId = member.getId();//会员id
            Date order_date = DateUtils.parseString2Date(orderDate);//预约日期
            int setmealId = (int) map.get("setmealId");
            Order order =new Order(memberId,order_date,null,null,setmealId);
            List<Order> byCondition = orderDao.findByCondition(order);
            if (byCondition!=null&&byCondition.size()>0){
                //说明有内容，会重复预约的
                return new Result(false,MessageConstant.HAS_ORDERED);
            }
        }else {
            //4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注册并进行预约
            member=new Member();
            member.setName((String) map.get("name"));
            member.setPhoneNumber(telephone);
            member.setIdCard((String) map.get("idCard"));
            member.setSex((String) map.get("sex"));
            member.setRegTime(new Date());
            //添加到数据库
            memberDao.add(member);
        }
        //5、预约成功，更新当日的已预约人数
        Order order =new Order();
        order.setMemberId(member.getId());
        order.setOrderDate(DateUtils.parseString2Date(orderDate));
        order.setOrderType((String) map.get("orderType"));
        order.setOrderStatus(Order.ORDERSTATUS_NO);
        order.setSetmealId(Integer.parseInt((String) map.get("setmealId")));//套餐ID
        //添加到数据库
        orderDao.add(order);

        //如果预约成功，需要设置预约人数+1
        orderSetting.setReservations(orderSetting.getReservations()-1);
        orderSettingDao.editNumberByOrderDate(orderSetting);
        return new Result(true,MessageConstant.ORDER_SUCCESS,order.getId());
    }

    //根据预约ID查询预约相关信息（体检人姓名、预约日期、套餐名称、预约类型）
    public Map findById(Integer id) throws Exception{
        Map map = orderDao.findById4Detail(id);
        if(map != null){
            //处理日期格式
            Date orderDate = (Date) map.get("orderDate");
            map.put("orderDate",DateUtils.parseDate2String(orderDate));
        }
        return map;
    }
}
